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  <div class="SECT1">
    <h1 class="SECT1"><a name="INTRODUCTION" id="INTRODUCTION">1.
    Introduction</a></h1>

    <p>This documentation is included with the current stable version of
    <span class="APPLICATION">Privoxy</span>, v.3.0.19.</p>

    <div class="SECT2">
      <h2 class="SECT2"><a name="FEATURES" id="FEATURES">1.1.
      Features</a></h2>

      <p>In addition to the core features of ad blocking and <a href=
      "http://en.wikipedia.org/wiki/Browser_cookie" target="_top">cookie</a>
      management, <span class="APPLICATION">Privoxy</span> provides many
      supplemental features, that give the end-user more control, more
      privacy and more freedom:</p>

      <ul>
        <li>
          <p>Supports "Connection: keep-alive". Outgoing connections can be
          kept alive independently from the client.</p>
        </li>

        <li>
          <p>Supports IPv6, provided the operating system does so too, and
          the configure script detects it.</p>
        </li>

        <li>
          <p>Supports tagging which allows to change the behaviour based on
          client and server headers.</p>
        </li>

        <li>
          <p>Can be run as an "intercepting" proxy, which obviates the need
          to configure browsers individually.</p>
        </li>

        <li>
          <p>Sophisticated actions and filters for manipulating both server
          and client headers.</p>
        </li>

        <li>
          <p>Can be chained with other proxies.</p>
        </li>

        <li>
          <p>Integrated browser-based configuration and control utility at
          <a href="http://config.privoxy.org/" target=
          "_top">http://config.privoxy.org/</a> (shortcut: <a href=
          "http://p.p/" target="_top">http://p.p/</a>). Browser-based tracing
          of rule and filter effects. Remote toggling.</p>
        </li>

        <li>
          <p>Web page filtering (text replacements, removes banners based on
          size, invisible <span class="QUOTE">"web-bugs"</span> and HTML
          annoyances, etc.)</p>
        </li>

        <li>
          <p>Modularized configuration that allows for standard settings and
          user settings to reside in separate files, so that installing
          updated actions files won't overwrite individual user settings.</p>
        </li>

        <li>
          <p>Support for Perl Compatible Regular Expressions in the
          configuration files, and a more sophisticated and flexible
          configuration syntax.</p>
        </li>

        <li>
          <p>GIF de-animation.</p>
        </li>

        <li>
          <p>Bypass many click-tracking scripts (avoids script
          redirection).</p>
        </li>

        <li>
          <p>User-customizable HTML templates for most proxy-generated pages
          (e.g. "blocked" page).</p>
        </li>

        <li>
          <p>Auto-detection and re-reading of config file changes.</p>
        </li>

        <li>
          <p>Most features are controllable on a per-site or per-location
          basis.</p>
        </li>

        <li>
          <p>Many smaller new features added, limitations and bugs
          removed.</p>
        </li>
      </ul>
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